7. Play hard to get

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This one is an extension of the "do not make the first move" advice. The difference is simple: Even if she knows you are interested, do not throw yourself at her disposal. If she knows that you would walk over water and swallow fire to be with her, then she will rain on your parade and pitch a lit match on your dreams, so let her know that you have places to go and people to see. Play hard to get.